209486590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{3331}}^1$

素因数の和:3688

約数の個数: 32

約数和(自身を含む): 398240640

約数和(自身を除く): 188754050

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 331, 662, 1655, 3310, 3331, 6289, 6662, 12578, 16655, 31445, 33310, 62890, 63289, 126578, 316445, 632890, 1102561, 2205122, 5512805, 11025610, 20948659, 41897318, 104743295, 209486590]

約数ペア:

[(1, 209486590), (2, 104743295), (5, 41897318), (10, 20948659), (19, 11025610), (38, 5512805), (95, 2205122), (190, 1102561), (331, 632890), (662, 316445), (1655, 126578), (3310, 63289), (3331, 62890), (6289, 33310), (6662, 31445), (12578, 16655)]